Ashoka's transformation after the Kalinga War is actually the first thing that came to my mind too. Wild how two completely different battles, in totally different parts of the world and eras, led to similar moral reckonings.

> led to similar moral reckonings

TFA points out that International Law (an output of moral reckoning, if you will) is being dismantled by those in power whose morals are lose.

I wonder, just how long is the memory of civilizations to remember the lessons + morals of the past & how many generations does it take for a civilization to unlearn the wrong lessons.